HEUER A RARE STAINLESS STEEL TONNEAU-SHAPED AUTOMATIC CHRONOGRAPH WRISTWATCH WITH DATE MADE FOR THE SOLOTHURN WATCHMAKING SCHOOL Signed Carrera Heuer, ref. 110253, case no. 371’764, circa 1978 Movement: cal. 12, automatic, 17 jewels, signed Dial: signed Case: screw back, 39 mm. diam., signed